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From: Nishka Dasgupta <nishkadg.linux@gmail.com>
To: jassisinghbrar@gmail.com, michal.simek@xilinx.com,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: Nishka Dasgupta <nishkadg.linux@gmail.com>
Subject: [PATCH] mailbox: zynqmp-ipi-mailbox: Add of_node_put() before goto
Date: Tue,  9 Jul 2019 22:58:41 +0530	[thread overview]
Message-ID: <20190709172841.13769-1-nishkadg.linux@gmail.com> (raw)

Each iteration of for_each_available_child_of_node puts the previous
node, but in the case of a goto from the middle of the loop, there is
no put, thus causing a memory leak. Hence add an of_node_put before the
goto.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
---
 drivers/mailbox/zynqmp-ipi-mailbox.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-ipi-mailbox.c
index 86887c9a349a..bd80d4c10ec2 100644
--- a/drivers/mailbox/zynqmp-ipi-mailbox.c
+++ b/drivers/mailbox/zynqmp-ipi-mailbox.c
@@ -661,6 +661,7 @@ static int zynqmp_ipi_probe(struct platform_device *pdev)
 		if (ret) {
 			dev_err(dev, "failed to probe subdev.\n");
 			ret = -EINVAL;
+			of_node_put(nc);
 			goto free_mbox_dev;
 		}
 		mbox++;
-- 
2.19.1


             reply	other threads:[~2019-07-09 17:28 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-09 17:28 Nishka Dasgupta [this message]
2019-07-31  8:31 ` [PATCH] mailbox: zynqmp-ipi-mailbox: Add of_node_put() before goto Michal Simek
2019-07-31 13:06   ` Nishka Dasgupta
2019-07-31 14:21     ` Michal Simek
2019-08-02  4:59       ` Nishka Dasgupta
2019-08-02  5:12         ` Michal Simek

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